function initHover()
{
	var nodes = document.getElementById("header");
	if(nodes)
	{
		var nodes_li = nodes.getElementsByTagName("li");
		for (var i=0; i<nodes_li.length; i++)
		{
			nodes_li[i].onmouseover = function()
			{
				this.className += " hover";
			}
			nodes_li[i].onmouseout = function()
			{
				this.className = this.className.replace(" hover", "");
			}
		}
		var nodes_div = nodes.getElementsByTagName("div");
		for (var i=0; i<nodes_div.length; i++)
		{
			nodes_div[i].onmouseover = function()
			{
				this.className += " hover";
			}
			nodes_div[i].onmouseout = function()
			{
				this.className = this.className.replace(" hover", "");
			}
		}
	}
	var items = document.getElementById("categories");
	if(items)
	{
		items = items.getElementsByTagName("div");
		for(var i=0; i<items.length; i++)
		{
			items[i].onmouseover = function()
			{
				this.className += " hover";
			}
			items[i].onmouseout = function()
			{
				this.className = this.className.replace(" hover", "");
			}
		}
	}
}
if (document.all && !window.opera) attachEvent("onload", initHover);